CN1962534A - Fibre reinforced resin rib - Google Patents
Fibre reinforced resin rib Download PDFInfo
- Publication number
- CN1962534A CN1962534A CN 200510100932 CN200510100932A CN1962534A CN 1962534 A CN1962534 A CN 1962534A CN 200510100932 CN200510100932 CN 200510100932 CN 200510100932 A CN200510100932 A CN 200510100932A CN 1962534 A CN1962534 A CN 1962534A
- Authority
- CN
- China
- Prior art keywords
- reinforced resin
- fibre reinforced
- fibre
- resin rib
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
Abstract
The invention discloses a reinforced fiber resin bar, which is composed of basaltic fiber and carbon fiber with 10-50% carbon fiber content in the total reinforced fiber. The reinforced body improves extending proof strength and fracture extending rate, which possesses high cutting-proof strength, pressure-proof strength and bending-proof strength due to short fiber in the resin.
Description
[technical field]
The present invention relates to building material field, especially the fibre reinforced resin rib field.
[background technology]
In the concrete construction engineering, skeleton construction is widely used.This structure has made full use of the tensile property of concrete compressive property and reinforcing bar, in the long-term widespread use of building engineering field quilt.But As time goes on, the shortcoming of this structure is also day by day obvious.For various reasons, Steel Concrete usually produces the crack, when the crack extends to reinforcing bar, causes reinforcement corrosion.Especially at northern frore area, use in the environment of ice-melt salt in a large number and coastal region, this phenomenon is more obvious.Reinforcement corrosion is got rusty has influenced the weather resistance of skeleton construction, causes the destruction in advance of structure.
Paper in the 18th to 22 page, the 51st to 61 page in " second national civil engineering work with fibre reinforced composites utilisation technology seminar collection of thesis " that publish in July, 2002 all proposes usefulness FRP muscle (Fiber Reinforced PolymerRebar, fibre reinforced resin rib) replaces reinforcing bar, be applied in the engineering field.FRP material not only non-corrosibility is good, and the tensile strength height, anti-fatigue performance is good and light weight, is applied gradually at building engineering field.
But the present FRP muscle that uses, its making method generally are after FRP rod pultrusion, twine one deck fiber more in its surface, and then apply one deck silica sand.In order to the FRP muscle that the top method is made, itself and concrete bond stress are little, can not bring into play the big advantage of FRP muscle tensile strength fully.Simultaneously, because it is not an integral body that the screw thread and the body of rod that form are twined in FRP muscle surface, so the destruction of FRP tendon concrete structure often FRP muscle itself and concrete stripping damage or the FRP fiber that muscle twines and the body of rod peel off the bonding sliding rupture that causes, this has also influenced the performance of FRP intensity from certain angle.Moreover, the present FRP muscle material price costliness of using, tensile strength but low slightly (comparing) with its fancy price.
Basalt fibre be natural basalt at high temperature melt drawing form technology environmental protection, and have characteristics such as good tensile strength, high-modulus, high temperature resistant, resist chemical.By the fibre reinforced resin rib that basalt fibre is made, tensile strength, ultimate compression strength all are higher than the glass-fiber reinforcement of same kind, and temperature tolerance and erosion resistance will be higher than glass-fiber reinforcement far away.In price, basalt fibre only omits height a bit than glass fibre.The tensile strength of basalt fibre is 2600Mpa～3200Mpa, and Young's modulus is 90Gpa～110Gpa; The tensile strength of glass fibre is 1500Mpa～2700Mpa, and Young's modulus is 80Gpa～90Gpa.
Carbon fiber is to be heated to 1500 ℃ of formed fibrous carbon materials by organic fibre or low molecular hydrocarbon gas raw material, and its carbon content is more than 90%.It has good characteristics such as low density, high strength, high-modulus, high temperature resistant, resist chemical, low resistance, low-thermal-expansion.The tensile strength of carbon fiber is 2800MPa～3800MPa, and Young's modulus is 180Gpa～250Gpa.
[summary of the invention]
The invention provides the fibre reinforced resin rib of a kind of high-tensile, strong bond stress, simultaneously excellent performances such as this muscle shear strength, ultimate compression strength, bending strength.
A kind of fibre reinforced resin rib, the enhancing body of this muscle is set up jointly with carbon fiber mixed by basalt fibre, and wherein the carbon fiber quality accounts for and strengthens 10%～50% of body total fiber mass.
In addition, can also be before the preparation fibre reinforced resin rib, the chopped strands such as aramid fiber, carbon fiber, glass fibre or basalt fibre that add mass ratio and be 1%～10% in its material resin, length are 2～6mm are done reinforcing filler, can realize resin microcosmic enhanced effect.
Above-mentioned fibre reinforced resin rib surface has the helicitic texture of full spiral and uniform pitch, and screw thread pushes formation in process of production, is muscle body of rod part of the whole.
The enhancing body of muscle is set up jointly with carbon fiber mixed by basalt fibre among the present invention, ((elongation at break of basalt fibre is 2.2% to tensile strength of carbon fibers at 2800MPa～3800MPa) and basalt fibre elongation at break height to have given full play to carbon fiber tensile strength height, the elongation at break of carbon fiber is 1.7%) advantage, compare with the galss fiber reinforced resin muscle, anti-wax intensity can reach its 1.3～1.7 times; Compare with simple basalt fibre enhancing resin muscle, tensile strength can reach its about 1.2～1.5 times, and elongation at break also improves.After in resin, adding staple fibre, can improve shear strength, ultimate compression strength, the bending strength of muscle.Perfect thread of the present invention, uniform pitch structure have increased the bond stress between muscle and the concrete; The body of rod of muscle and screw thread are one, have avoided the phenomenon of helicitic texture and muscle body of rod stripping damage.Because the mechanical property and the preservative property of excellence of the present invention, it can be used in the concrete structure, partly replaces reinforcing bar and uses, and can reach good effect.
[embodiment]
The specific embodiment of the present invention:
The enhancing body of muscle of the present invention is set up jointly with carbon fiber mixed by basalt fibre, and wherein the carbon fiber quality accounts for and strengthens 10%～50% of body total mass, makes through certain art breading, has left-handed or dextral helicitic texture on the body of rod; Screw thread pushes formation in disposable production process, be muscle body of rod part of the whole.In the production process, after body of rod premolding, radially rotate in the exit, thereby compacting forms left-handed or dextral helicitic texture with pinch roller.
In addition, can also be in process of production, the chopped strands such as aramid fiber, carbon fiber, glass fibre or basalt fibre that add mass ratio and be 1%～10% in material resin, length are 2～6mm are done reinforcing filler, after stirring, produce by the original production process pultrusion again.Because the high strength chopped strand that is added, and its hybridism in resin, resin is made shear strength, resistance to compression and the bending strength of muscle material of the present invention be greatly improved by macrofiber and the collaborative enhancing of chopped strand in the present invention.
Claims (3)
1, a kind of fibre reinforced resin rib is characterized in that: the enhancing body of this muscle is set up jointly with carbon fiber mixed by basalt fibre, and wherein the carbon fiber quality accounts for and strengthens 10%～50% of body total fiber mass.
2, fibre reinforced resin rib according to claim 1, it is characterized in that: the chopped strands such as aramid fiber, carbon fiber, glass fibre or basalt fibre that before the preparation fibre reinforced resin rib, add mass ratio and be 1%～10% in its material resin, length are 2～6mm are done reinforcing filler.
3, fibre reinforced resin rib according to claim 1 and 2 is characterized in that: above-mentioned fibre reinforced resin rib surface has the helicitic texture of full spiral and uniform pitch, and screw thread pushes formation in process of production, is muscle body of rod part of the whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100932 CN1962534A (en) | 2005-11-08 | 2005-11-08 | Fibre reinforced resin rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100932 CN1962534A (en) | 2005-11-08 | 2005-11-08 | Fibre reinforced resin rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1962534A true CN1962534A (en) | 2007-05-16 |
Family
ID=38081787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510100932 Pending CN1962534A (en) | 2005-11-08 | 2005-11-08 | Fibre reinforced resin rib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1962534A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792954A (en) * | 2010-03-04 | 2010-08-04 | 杨建中 | In-layer hybrid fiber cloth used in civil engineering and multilayer hybrid fiber cloth |
| CN102644277A (en) * | 2012-04-28 | 2012-08-22 | 从卫民 | Supporting cantilever pile with prestress steel bowstring and reinforced plastic rod composite structure |
| CN103497524A (en) * | 2013-07-27 | 2014-01-08 | 国家电网公司 | Composite rib made of basalt fiber and preparation method thereof |
| CN107310226A (en) * | 2017-08-10 | 2017-11-03 | 中南大学 | A kind of assorted fibre plate |
| WO2020057408A1 (en) * | 2018-09-20 | 2020-03-26 | 大连理工大学 | Micro rebar having basalt fiber-wrapped structural steel fiber core column |
-
2005
- 2005-11-08 CN CN 200510100932 patent/CN1962534A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792954A (en) * | 2010-03-04 | 2010-08-04 | 杨建中 | In-layer hybrid fiber cloth used in civil engineering and multilayer hybrid fiber cloth |
| CN102644277A (en) * | 2012-04-28 | 2012-08-22 | 从卫民 | Supporting cantilever pile with prestress steel bowstring and reinforced plastic rod composite structure |
| CN103497524A (en) * | 2013-07-27 | 2014-01-08 | 国家电网公司 | Composite rib made of basalt fiber and preparation method thereof |
| CN107310226A (en) * | 2017-08-10 | 2017-11-03 | 中南大学 | A kind of assorted fibre plate |
| WO2020057408A1 (en) * | 2018-09-20 | 2020-03-26 | 大连理工大学 | Micro rebar having basalt fiber-wrapped structural steel fiber core column |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20070516 |